444923137 has 8 divisors (see below), whose sum is σ = 447322176. Its totient is φ = 442530672.

The previous prime is 444923123. The next prime is 444923147. The reversal of 444923137 is 731329444.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-444923137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 444923096 and 444923105.

It is not an unprimeable number, because it can be changed into a prime (444923147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188398 + ... + 190744.

It is an arithmetic number, because the mean of its divisors is an integer number (55915272).

Almost surely, 2^444923137 is an apocalyptic number.

It is an amenable number.

444923137 is a deficient number, since it is larger than the sum of its proper divisors (2399039).

444923137 is a wasteful number, since it uses less digits than its factorization.

444923137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3287.

The product of its digits is 72576, while the sum is 37.

The square root of 444923137 is about 21093.2012032313. The cubic root of 444923137 is about 763.4167131555.

The spelling of 444923137 in words is "four hundred forty-four million, nine hundred twenty-three thousand, one hundred thirty-seven".